[GRASS-user] mosaicing classified images

[Markus Neteler]

On Wed, Jan 7, 2009 at 4:04 AM, maning sambale
<emmanuel.sambale at gmail.com> wrote:
> Hi,
> I have a series of classified rasters from different landsat images
> (various dates).  I want to moasic/stitch them to a one raster.  The
> problem is there are subtle differences in the classified output. Any
> advise in mosaicing them?

(I am afraid that it is easier to first mosaic (e.g., with OSSIM), then
 do the classification...)

You could vectorize the raster areas and then try some SQL
magic to match close polygons. Also v.clean to remove tiny
areas from the map if needed.

Markus